Bell Textron D-314 tiltrotor designs.

George Vranek wrote:

"John Roncallo" wrote in message
. com...

George Vranek wrote:

It's hardly to believe, that the tilt rotor will be able (someday) to

fly so

fast and so far as a conventional turboprop and lift in hovering so much

as

a conventional helicopter with the same installed power, because the

tilt

rotor (tilt wing) has not and could never have optimal rotors for

hovering

and optimal props for cruising. But the disk rotor helicopter shown on

the

www.vranek.ch/diskrotor.htm will be able (someday) to cruise as fast as

a

Lear Jet above all of the weather and lift in hoverig so much as a
conventional helicopter with the same installed power.

George



OK George

I said your concept had about as much merit as a tilt rotor in previous
posts. But now you are trying to stretch it a bit.

J. Roncallo



Hallo John

I am pleased, that you still remember me and the disk rotor helicopter.
Years ago I saw the Bell XV-15 flying at the Paris Airshow and my opinion
was, that the pilot transports a basket of rough eggs. When I was a farmer
boy, I often had to transport a basket of rough eggs to the city with the
bicycle of my mom. Therefore I know, what it means.... Now, a row of years
later and development costs of billion $$, the V22 does not fly better.
Therefore I mean, that the disk rotor concept has much more merit as a
tiltrotor and I am only trying to publish this fact.

George



I'm not challenging whether the disk rotor will out perform the tilt
rotor. But your message states you will get the same performance with
the disk rotor as you will with an airplane in airplane mode or as much
performance as a helicopter in hover mode. This I find to be pushing the
limits of insulting our intelligence.

John Roncallo

"John Roncallo" wrote in message
. com...
I'm not challenging whether the disk rotor will out perform the tilt
rotor. But your message states you will get the same performance with
the disk rotor as you will with an airplane in airplane mode or as much
performance as a helicopter in hover mode. This I find to be pushing the
limits of insulting our intelligence.

John Roncallo


I am sorry John, but my mother speach is not english and therefore you could
get the impression, that I am pushing the limits of insulting your
intelligence. I only want to explaine why the disk rotor is better than the
tilt rotor. You know, the conventional rotor is good for hovering only and
to fly fast with it is an aerodynamic crime, which is punished immediately
by vibrations, noise, low efficiency... The disk in the disk rotor improves
the rotor efficiency in hovering and compensates so its weight penalty. In
the cruisig, the rotor blades are retracted in the disk and the disk acts
than as a fixed wing, which is well suitable for fast flying similar to a
delta wing. Please have a look at www.vranek.ch/diskrotor.htm for more
details.

George